Crisis on Earth-AB (4/12) (Patreon)

Mary Batson was an adult woman gifted with the powers of SHAZAM (the safety, beauty, ecstasy and youthfulness of Soteria, Hebe, Aphrodite, Zagreus, Aurora, and Maia) by a sorceress with a stuffed cheetah plush. The sorceress offered her an escape from her dull adult life with a magic word that would transform her into an super-powered adult baby. 

As the Baby Marvel, she uses her powers to pacify cranky metahumans and infantilize criminals.